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e12621ce2a
Removes duplicate nodes from the geometry, wherever removing the nodes does not result in a degenerate geometry. By default, z values are not considered when detecting duplicate nodes. E.g. two nodes with the same x and y coordinate but different z values will still be considered duplicate and one will be removed. If useZValues is true, then the z values are also tested and nodes with the same x and y but different z will be maintained. Note that duplicate nodes are not tested between different parts of a multipart geometry. E.g. a multipoint geometry with overlapping points will not be changed by this method. The function will return true if nodes were removed, or false if no duplicate nodes were found. Includes unit tests and a processing algorithm which exposes this functionality.
227 lines
7.1 KiB
Plaintext
227 lines
7.1 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/geometry/qgscurvepolygon.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsCurvePolygon: QgsSurface
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{
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%Docstring
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Curve polygon geometry type
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.. versionadded:: 2.10
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%End
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%TypeHeaderCode
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#include "qgscurvepolygon.h"
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%End
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public:
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QgsCurvePolygon();
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QgsCurvePolygon( const QgsCurvePolygon &p );
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bool operator==( const QgsCurvePolygon &other ) const;
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bool operator!=( const QgsCurvePolygon &other ) const;
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%Docstring
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:rtype: bool
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%End
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~QgsCurvePolygon();
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virtual QString geometryType() const;
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virtual int dimension() const;
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virtual QgsCurvePolygon *clone() const /Factory/;
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virtual void clear();
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virtual bool fromWkb( QgsConstWkbPtr &wkb );
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virtual bool fromWkt( const QString &wkt );
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virtual QByteArray asWkb() const;
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virtual QString asWkt( int precision = 17 ) const;
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virtual QDomElement asGml2( QDomDocument &doc, int precision = 17, const QString &ns = "gml" ) const;
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virtual QDomElement asGml3( QDomDocument &doc, int precision = 17, const QString &ns = "gml" ) const;
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virtual QString asJson( int precision = 17 ) const;
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virtual double area() const;
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virtual double perimeter() const;
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virtual QgsPolygon *surfaceToPolygon() const /Factory/;
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virtual QgsAbstractGeometry *boundary() const /Factory/;
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virtual QgsCurvePolygon *snappedToGrid( double hSpacing, double vSpacing, double dSpacing = 0, double mSpacing = 0 ) const /Factory/;
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virtual bool removeDuplicateNodes( double epsilon = 4 * DBL_EPSILON, bool useZValues = false );
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int numInteriorRings() const;
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%Docstring
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:rtype: int
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%End
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const QgsCurve *exteriorRing() const;
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%Docstring
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:rtype: QgsCurve
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%End
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const QgsCurve *interiorRing( int i ) const;
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%Docstring
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:rtype: QgsCurve
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%End
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virtual QgsPolygon *toPolygon( double tolerance = M_PI_2 / 90, SegmentationToleranceType toleranceType = MaximumAngle ) const /Factory/;
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%Docstring
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Returns a new polygon geometry corresponding to a segmentized approximation
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of the curve.
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\param tolerance segmentation tolerance
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\param toleranceType maximum segmentation angle or maximum difference between approximation and curve*
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:rtype: QgsPolygon
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%End
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virtual void setExteriorRing( QgsCurve *ring /Transfer/ );
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%Docstring
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Sets the exterior ring of the polygon. The CurvePolygon type will be updated to match the dimensionality
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of the exterior ring. For instance, setting a 2D exterior ring on a 3D CurvePolygon will drop the z dimension
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from the CurvePolygon and all interior rings.
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\param ring new exterior ring. Ownership is transferred to the CurvePolygon.
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.. seealso:: setInteriorRings()
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.. seealso:: exteriorRing()
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%End
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void setInteriorRings( const QVector<QgsCurve *> &rings /Transfer/ );
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%Docstring
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Sets all interior rings (takes ownership)
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%End
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virtual void addInteriorRing( QgsCurve *ring /Transfer/ );
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%Docstring
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Adds an interior ring to the geometry (takes ownership)
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%End
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bool removeInteriorRing( int ringIndex );
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%Docstring
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Removes an interior ring from the polygon. The first interior ring has index 0.
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The corresponding ring is removed from the polygon and deleted. If a ring was successfully removed
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the function will return true. It is not possible to remove the exterior ring using this method.
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.. seealso:: removeInteriorRings()
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:rtype: bool
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%End
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void removeInteriorRings( double minimumAllowedArea = -1 );
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%Docstring
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Removes the interior rings from the polygon. If the minimumAllowedArea
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parameter is specified then only rings smaller than this minimum
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area will be removed.
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.. versionadded:: 3.0
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.. seealso:: removeInteriorRing()
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%End
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virtual void draw( QPainter &p ) const;
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virtual void transform( const QgsCoordinateTransform &ct, QgsCoordinateTransform::TransformDirection d = QgsCoordinateTransform::ForwardTransform,
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bool transformZ = false );
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virtual void transform( const QTransform &t, double zTranslate = 0.0, double zScale = 1.0, double mTranslate = 0.0, double mScale = 1.0 );
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virtual bool insertVertex( QgsVertexId position, const QgsPoint &vertex );
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virtual bool moveVertex( QgsVertexId position, const QgsPoint &newPos );
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virtual bool deleteVertex( QgsVertexId position );
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virtual QgsCoordinateSequence coordinateSequence() const;
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virtual int nCoordinates() const;
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virtual int vertexNumberFromVertexId( QgsVertexId id ) const;
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virtual bool isEmpty() const;
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virtual double closestSegment( const QgsPoint &pt, QgsPoint &segmentPt /Out/, QgsVertexId &vertexAfter /Out/, int *leftOf /Out/ = 0, double epsilon = 4 * DBL_EPSILON ) const;
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virtual bool nextVertex( QgsVertexId &id, QgsPoint &vertex /Out/ ) const;
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virtual void adjacentVertices( QgsVertexId vertex, QgsVertexId &previousVertex /Out/, QgsVertexId &nextVertex /Out/ ) const;
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virtual bool hasCurvedSegments() const;
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virtual QgsAbstractGeometry *segmentize( double tolerance = M_PI_2 / 90, SegmentationToleranceType toleranceType = MaximumAngle ) const /Factory/;
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%Docstring
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Returns a geometry without curves. Caller takes ownership
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\param tolerance segmentation tolerance
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\param toleranceType maximum segmentation angle or maximum difference between approximation and curve*
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:rtype: QgsAbstractGeometry
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%End
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virtual double vertexAngle( QgsVertexId vertex ) const;
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%Docstring
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Returns approximate rotation angle for a vertex. Usually average angle between adjacent segments.
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\param vertex the vertex id
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:return: rotation in radians, clockwise from north
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:rtype: float
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%End
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virtual int vertexCount( int part = 0, int ring = 0 ) const;
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virtual int ringCount( int part = 0 ) const;
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virtual int partCount() const;
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virtual QgsPoint vertexAt( QgsVertexId id ) const;
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virtual double segmentLength( QgsVertexId startVertex ) const;
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virtual bool addZValue( double zValue = 0 );
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virtual bool addMValue( double mValue = 0 );
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virtual bool dropZValue();
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virtual bool dropMValue();
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virtual QgsCurvePolygon *toCurveType() const /Factory/;
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protected:
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virtual QgsCurvePolygon *createEmptyWithSameType() const /Factory/;
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virtual int childCount() const;
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virtual QgsAbstractGeometry *childGeometry( int index ) const;
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protected:
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virtual QgsRectangle calculateBoundingBox() const;
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/geometry/qgscurvepolygon.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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